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CB750 v2.1 w/ Lithium Update

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This machine is now in its second major revision: I got a deal on some lithium cells from Barefoot Motors (Jamie from Mythbusters’ ATV company) Lucky day, they also came with a balance charger.

Lithium Batteries, Tail-section and Lighting, better cooling and so on.It has a new gear ratio as well. Top speed and acceleration have actually both increased. The previous gearing was simply too tall.

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Lower tray expanded by David Davidian of Ironman Fabrication, who also welded the original lead acid tray. Tail section is my first attempt at fiberglass.

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Show and tell. This is everything at a glance. The new cells are so strong that when fully charged they actually hit V+ cutoff on the controller. I’m skipping a cell for the time being and considering using it to run accessory cooling. You can still see the tank tabs from the previous iteration’s plexiglass side covers.

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This is my favorite touch. My wife Lori made all of the wooden pieces on the V.1 design and this is how she’s treated the tank’s fill-up door. Wood panel with control switches and 48v voltmeter.

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Fill ‘er Up!